Defense Intelligence Agency, [Report on Operation Condor] "Special Operations Forces," SECRET, October 1, 1976. This comprehensive intelligence report, based on information gathered by the FBI legal attaché in Buenos Aires, provides details on the collaboration between Argentina, Uruguay, and other Southern Cone military dictatorships. The document provided critical information to prosecutors on a joint operation with Uruguayan intelligence agents in late September 1976, in which dozens of Uruguayan members of the militant leftist movement OPR-33 were rounded up, detained, tortured, and a number killed in Buenos Aires. "The entire OPR-33 infrastructure in Argentina has been eliminated," the document states. The kidnapped Uruguayans are among the over one hundred disappeared victims included in the Operation Condor trial. The document goes on to describe the "formation of special teams" to "carry out operations to include assassinations" in countries as far away as Portugal and France. The report cited a "favorite remark" of Southern Cone military officers as saying that "one of their colleagues is out of country because he is flying like a condor."

http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB416/docs/19761001%20Special%20Operations%20Forces%20small.pdf